Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands		3 Months Ended						6 Months Ended
	Feb. 28, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue from External Customer [Line Items]
Total segment and consolidated cost of revenues		$ 5,565				$ 2,458		$ 11,180	$ 5,605
General and administrative expenses		5,382				4,136		9,378	8,496
Interest expense		(449)				(486)		(873)	(1,861)
Loss on debt extinguishment and revaluation	$ 5,800	(5,600)				(2,054)		(8,698)	(1,581)
Loss (gain) on sale of fixed assets		(21)				48		(21)	(30)
Income tax (benefit) from continuing operations		649				547		1,197	1,093
Net loss		(9,145)	$ (2,544)	$ (4,997)	$ (6,016)	(9,257)	$ (7,432)	(11,689)	(16,689)
(Less) Net (income) loss attributable to non-controlling interest		(1,728)				482		(4,438)	852
Net loss attributable to Soluna Holdings, Inc.		(10,873)				(8,775)		(16,127)	(15,837)
Depreciation and amortization		2,403				2,379		4,805	4,756
Reportable Subsegments [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated revenue		9,675				2,068		22,224	5,150
Total segment and consolidated cost of revenues		5,565				2,458		11,180	5,605
General and administrative expenses		7,785				6,515		14,183	13,252
Impairment on fixed assets						169		130	379
Interest expense		449				486		873	1,861
Loss on debt extinguishment and revaluation		5,600				2,054		8,698	1,581
Loss (gain) on sale of fixed assets		21				(48)		21	30
Other expense, net		49				238		25	224
Income tax (benefit) from continuing operations		(649)				(547)		(1,197)	(1,093)
Net loss		(9,145)				(9,257)		(11,689)	(16,689)
(Less) Net (income) loss attributable to non-controlling interest		(1,728)				482		(4,438)	852
Net loss attributable to Soluna Holdings, Inc.		10,873				(8,775)		16,127	(15,837)
Capital expenditures		44				2,035		278	2,895
Depreciation and amortization		3,909				2,918		7,834	5,920
Cryptocurrency Mining Revenue [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated revenue		4,484				915		10,880	3,711
Total segment and consolidated cost of revenues		1,883				1,160		3,724	3,410
Data Hosting Revenue [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated revenue		4,898				1,153		10,176	1,439
Total segment and consolidated cost of revenues		2,176				759		4,427	1,031
Demand Response Service Revenue [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated revenue		293						1,168
Cost of Revenue Depreciation [Member]
Revenue from External Customer [Line Items]
Total segment and consolidated cost of revenues		$ 1,506				$ 539		$ 3,029	$ 1,164